EOS Aura MLS: first year post-launch engineering assessment

Karen A. Lee; Richard R. Lay; Robert F. Jarnot; Richard E. Cofield; Herbert M. Pickett; Paul C. Stek; Dennis A. Flower

doi:10.1117/12.620130

22 August 2005 EOS Aura MLS: first year post-launch engineering assessment

Karen A. Lee, Richard R. Lay, Robert F. Jarnot, Richard E. Cofield, Herbert M. Pickett, Paul C. Stek, Dennis A. Flower

Proceedings Volume 5882, Earth Observing Systems X; 58821D (2005) https://doi.org/10.1117/12.620130
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

The Microwave Limb Sounder (MLS) instrument, launched in July of 2004 on NASA's EOS Aura satellite, has been in its nominal science operating mode since August 2004. The objective of EOS MLS is to obtain measurements of atmospheric composition, temperature and pressure through observations of millimeter- and submillimeter-wavelength thermal emission as the instrument field-of-view is scanned through the atmospheric limb. The MLS instrument has completed activation, in-orbit calibrations have been performed leading to adjustments to radiometric calibration (Level 1) algorithms, a software upgrade was implemented for more robust operation of the laser local oscillator, and engineering performance trends have been established. This paper discusses the current status of the MLS instrument which now continuously provides data to produce global maps of targeted chemical species as well as temperature, cloud ice, and gravity wave activity. Performance trends are assessed with respect to characterization during initial on-orbit activation of the instrument, and with data from ground test verification prior to launch.

Citation Download Citation

Karen A. Lee, Richard R. Lay, Robert F. Jarnot, Richard E. Cofield, Herbert M. Pickett, Paul C. Stek, and Dennis A. Flower "EOS Aura MLS: first year post-launch engineering assessment", Proc. SPIE 5882, Earth Observing Systems X, 58821D (22 August 2005); https://doi.org/10.1117/12.620130

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